HEIDENHAIN iTNC 530 (340 49x-04) Touch Probe Cycles - Manual (Page 122)

122 3 Touch Probe Cycles for Automatic Workpiece Inspection
3.3 A
u
to
matic W
o
rk
piece Measur
ement
 Center in 1st axis Q273 (absolute value): Center of
the stud in the reference axis of the working plane.
 Center in 2nd axis Q274 (absolute value): Center of
the stud in the minor axis of the working plane.
 Nominal diameter Q262: Enter the diameter of the
stud.
 Starting angle Q325 (absolute): Angle between the
reference axis of the working plane and the first touch
point.
 Stepping angle Q247 (incremental): Angle between
two measuring points. The algebraic sign of the
stepping angle determines the direction of rotation
(negative = clockwise). If you wish to probe a circular
arc instead of a complete circle, then program the
stepping angle to be less than 90°.
 Measuring height in the touch probe axis Q261
(absolute): Coordinate of the ball tip center (= touch
point) in the touch probe axis in which the
measurement is to be made.
 Setup clearance Q320 (incremental): Additional
distance between measuring point and ball tip. Q320
is added to MP6140.
 Clearance height Q260 (absolute): Coordinate in the
touch probe axis at which no collision between tool
and workpiece (fixtures) can occur.
 Traversing to clearance height Q301: Definition of
how the touch probe is to move between the
measuring points:
0: Move at measuring height between measuring
points
1: Move at clearance height between measuring
points
 Maximum dimension of size for stud Q277:
Maximum permissible dimension for the stud.
 Minimum dimension of size for the stud Q278:
Minimum permissible dimension for the stud.
 Tolerance value for center 1st axis Q279:
Permissible position deviation in the reference axis of
the working plane.
 Tolerance value for center 2nd axis Q280:
Permissible position deviation in the minor axis of the
working plane.
X
Y
Q325
Q247
Q278 Q262 Q277
Q274 ±Q280
Q273 ±Q279
MP6140
+
Q320
X
Z
Q261
Q260
The smaller the angle, the less accurately the TNC can
calculate the dimensions of the stud. Minimum input
value: 5°